Packit: switch fedora copr targets to fedora-all

Fedora-39 is now EOL, so fedora-all will not include it anymore.

Signed-off-by: Lokesh Mandvekar <lsm5@fedoraproject.org>

.packit.yaml

@@ -32,14 +32,8 @@ jobs:
       failure_comment:
         message: "Ephemeral COPR build failed. @containers/packit-build please check."
     targets:
-      - fedora-development-x86_64
-      - fedora-development-aarch64
-      - fedora-latest-x86_64
-      - fedora-latest-aarch64
-      - fedora-latest-stable-x86_64
-      - fedora-latest-stable-aarch64
-      - fedora-40-x86_64
-      - fedora-40-aarch64
+      - fedora-all-x86_64
+      - fedora-all-aarch64
     enable_net: true
 
   - job: copr_build